| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 17, 2024 | Dec 13, 2023 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 29, 2022 | Mar 2, 2022 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 6, 2021 | Dec 2, 2021 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 24, 2021 | Nov 23, 2021 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 29, 2021 | Jun 28, 2021 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 14, 2020 | Dec 11, 2020 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 9, 2020 | Dec 8, 2020 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 13, 2020 | Oct 12, 2020 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2020 | Aug 26, 2020 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 20, 2020 | Aug 19, 2020 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 12, 2020 | Aug 11, 2020 | 000-06658 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 22, 2020 | Jul 21, 2020 | 000-06658 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | May 24, 2019 | Mar 6, 2019 | 000-06658 |